Clickable/Blow-up of photo in gallery in an index possible?

Hi, 

I'm building a gallery for a photography site using the Brine > Jaunt template. Is there any way to get an image gallery to be laid out as I have it, and have the images clickable to be viewed full size without any crop? I didn't see this feature and would have assumed for a gallery it would be there? 

Is there any other way to achieve this look? Perhaps one that doesn't crop images either? Open to suggestions. Thx!